Click on a day for an hourly weather forecast
The temperatures in Melun in September are comfortable with low of 12°C and and high up to 22°C.
You can expect about 3 to 8 days of rain in Melun during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Melun in September 2026.
If you’re planning to visit Melun in the near future, we highly recommend that you review the 14 day weather forecast for Melun before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / 2° | 9 | 17 | 4 | 84 mm | Awful | Melun in January |
| February | 8° / 2° | 8 | 16 | 4 | 84 mm | Awful | Melun in February |
| March | 12° / 4° | 7 | 23 | 1 | 74 mm | Bad | Melun in March |
| April | 16° / 7° | 5 | 25 | 0 | 72 mm | Good | Melun in April |
| May | 18° / 9° | 7 | 24 | 0 | 123 mm | Ok | Melun in May |
| June | 22° / 13° | 7 | 23 | 0 | 124 mm | Ok | Melun in June |
| July | 25° / 15° | 6 | 25 | 0 | 101 mm | Perfect | Melun in July |
| August | 26° / 15° | 4 | 27 | 0 | 86 mm | Perfect | Melun in August |
| September | 22° / 12° | 4 | 26 | 0 | 59 mm | Good | Melun in September |
| October | 17° / 9° | 6 | 25 | 0 | 83 mm | Good | Melun in October |
| November | 11° / 6° | 7 | 22 | 1 | 88 mm | Bad | Melun in November |
| December | 7° / 3° | 10 | 18 | 3 | 109 mm | Awful | Melun in December |